Biology 1201 Exam 1 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Scientific Method? - CORRECT ANSWER - 1. Observation, 2. Hypothesis, 3. Test
Hypothesis, 4. Conclusion
Prokaryotic Cells - CORRECT ANSWER - lack a membrane bound nucleus
Eukaryotic cells - CORRECT ANSWER - Larger, complex, with nucleus, membrane
bound organelles, DNA tightly wrapped around histone proteins in chromosomes, cellulose in
plant cell walls.
Autotrophic - CORRECT ANSWER - Organisms that make their own food
Heterotrophic - CORRECT ANSWER - Organisms that obtain their nutrients or food from
consuming other organisms.
Aerobic - CORRECT ANSWER - Process that requires oxygen
Anarobic - CORRECT ANSWER - metabolic process that does not require oxygen
Isotopes - CORRECT ANSWER - Atoms of the same element that have different numbers
of neutrons
radioactive isotope - CORRECT ANSWER - An isotope (an atomic form of a chemical
element) that is unstable; the nucleus decays spontaneously, giving off detectable particles and
energy.
valence shell - CORRECT ANSWER - outermost electron shell
, valence electrons - CORRECT ANSWER - electrons in the outermost shell
covalent bond - CORRECT ANSWER - A chemical bond in which electrons are shared
equally
polar covalent bond - CORRECT ANSWER - A covalent bond in which electrons are not
shared equally
Solution - CORRECT ANSWER - A homogeneous mixture of two or more substances
Solvent - CORRECT ANSWER - A liquid substance capable of dissolving other
substances
Solute - CORRECT ANSWER - A substance that is dissolved in a solution.
aqueous solution - CORRECT ANSWER - a solution in which water is the solvent
Hydrophobic - CORRECT ANSWER - Water fearing
Hydrophilic - CORRECT ANSWER - water loving
DNA is composed of building blocks called _____. - CORRECT ANSWER - nucleotides
In eukaryotic cells DNA has the appearance of a____. - CORRECT ANSWER - double
helix
Which of the following attributes is common to both prokaryotic cells and eukaryotic cells? -
CORRECT ANSWER - The use of DNA as the info storage molecule.
Exam Questions and CORRECT Answers
Scientific Method? - CORRECT ANSWER - 1. Observation, 2. Hypothesis, 3. Test
Hypothesis, 4. Conclusion
Prokaryotic Cells - CORRECT ANSWER - lack a membrane bound nucleus
Eukaryotic cells - CORRECT ANSWER - Larger, complex, with nucleus, membrane
bound organelles, DNA tightly wrapped around histone proteins in chromosomes, cellulose in
plant cell walls.
Autotrophic - CORRECT ANSWER - Organisms that make their own food
Heterotrophic - CORRECT ANSWER - Organisms that obtain their nutrients or food from
consuming other organisms.
Aerobic - CORRECT ANSWER - Process that requires oxygen
Anarobic - CORRECT ANSWER - metabolic process that does not require oxygen
Isotopes - CORRECT ANSWER - Atoms of the same element that have different numbers
of neutrons
radioactive isotope - CORRECT ANSWER - An isotope (an atomic form of a chemical
element) that is unstable; the nucleus decays spontaneously, giving off detectable particles and
energy.
valence shell - CORRECT ANSWER - outermost electron shell
, valence electrons - CORRECT ANSWER - electrons in the outermost shell
covalent bond - CORRECT ANSWER - A chemical bond in which electrons are shared
equally
polar covalent bond - CORRECT ANSWER - A covalent bond in which electrons are not
shared equally
Solution - CORRECT ANSWER - A homogeneous mixture of two or more substances
Solvent - CORRECT ANSWER - A liquid substance capable of dissolving other
substances
Solute - CORRECT ANSWER - A substance that is dissolved in a solution.
aqueous solution - CORRECT ANSWER - a solution in which water is the solvent
Hydrophobic - CORRECT ANSWER - Water fearing
Hydrophilic - CORRECT ANSWER - water loving
DNA is composed of building blocks called _____. - CORRECT ANSWER - nucleotides
In eukaryotic cells DNA has the appearance of a____. - CORRECT ANSWER - double
helix
Which of the following attributes is common to both prokaryotic cells and eukaryotic cells? -
CORRECT ANSWER - The use of DNA as the info storage molecule.
